Etymologies

From Russian царь (car’), from Old East Slavic цьсарь (cĭsarĭ), from Old Church Slavonic цѣсарь (cěsarĭ), from Gothic 𐌺𐌰𐌹𐍃𐌰𐍂 (kaisar, "emperor"), believed to come from Latin Caesar. (Wiktionary)

Examples

Later in the article Professor Rod Morgan, the youth justice "tsar", is quoted as saying: "If we are dragging into the system kids who can be dealt with outside then we are overloading it and that means it's likely we will not do as good a job as the public expects with higher-risk cases."

Even with Liverpool's transformation into an un-vanguard and the equally unexpected decision by Lord Wei, unpaid big society "tsar", to volunteer less, through lack of money and time, an initiative that eludes, insults or enrages virtually everyone beyond the innermost parts of the government is to be pursued and where possible imposed by force of will.

“Sir Alan Sugar has no business on TV now: The appointment of Sir Alan Sugar as enterprise 'tsar' is a stunt, but it is a Government-sanctioned one: and, as such, he should no longer be allowed to appear on his rather coarse television programme, says Simon Heffer”